function smallestNumber(first, second, third) {
if (first < second && first < third) {
return first;
} else if (second < first && second < third) {
return second;
} else {
return third;
}
}
const num1 = 100;
const num2 = 120;
const num3 = 80;
console.log(smallestNumber(num1, num2, num3));
//Output: 80